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Finding the Fourth Proportional to 12,600.74, 17,388 and 7,294.52

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Solution

The fourth proportional to 12,600.74, 17,388 and 7,294.52 is: 10,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,600.74 : 17,388 = 7,294.52 : x
  2. Step 2: Convert to fraction form
    12,600.74/17,388 = 7,294.52/x
  3. Step 3: Cross multiply
    12,600.74x = 17,388 × 7,294.52
  4. Step 4: Simplify right side
    12,600.74x = 126,837,113.76
  5. Step 5: Solve for x
    x = 126,837,113.76/12,600.74
  6. Step 6: Final answer
    x = 10,065.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.